Optimize Client Error Return

[eiixy]

fix: #836 #806 #777

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.04%. Comparing base (774fc9d) to head (1594268). Report is 55 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #856 +/- ## ========================================== + Coverage 98.46% 99.04% +0.58% ========================================== Files 24 26 +2 Lines 1364 1461 +97 ========================================== + Hits 1343 1447 +104 + Misses 15 8 -7 Partials 6 6 ```

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[j2gg0s]

Can we add a field to RequestError to log the body when the server returns a response that is neither JSON nor an ErrorResponse?